P0573 MERCEDES-BENZ – Cruise Control/Brake Switch ‘A’ Circuit High

P0573 MERCEDES-BENZ Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Stop light inoperative,Cruise control system inoperative

P0573 MERCEDES-BENZ Possible Causes

Faulty Brake Switch,Brake Switch harness is open or shorted,Brake Switch circuit poor electrical connection

P0573 MERCEDES-BENZ Description

When the brake pedal is depressed, the stop light switch sends a signal to the Engine Control Module (ECM). When the ECM receives this signal, it cancels the cruise control.